Suzuki DF70A Service Manual page 59

Caution System Description
The following four caution systems alert the operator when an abnormality occurs on the engine.
• OVER-REVOLUTION CAUTION
• LOW OIL PRESSURE CAUTION
• OVERHEAT CAUTION
• LOW BATTERY VOLTAGE CAUTION
Caution Type
Over-revolution
Low oil pressure
Overheat
Low battery voltage
Lamp check / Buzzer Check
When the ignition key is turned to the "ON" position:
• Four Caution lamps turns on for two seconds.
• Caution buzzer sounds for two seconds.
Over-Revolution Caution System
Condition:
The ECM controlled over revolution limiter will engage at the engine speeds shown below. Once engaged it will initiate
an intermittent fuel injection signal to reduce engine speed.
Over revolution limiter
DF70 / 80: 6 200 r/min.
DF90: 6 400 r/min.
Action:
Engine speed
Caution lamp
Caution buzzer
Reset:
Close the throttle to reduce the engine speed below approx. 3 000 r/min. for one second.
Monitor-Tachometer
"D"
"A": "REV LIMIT" lamp
"B": "OIL" lamp
Caution Lamp
Yes "A"
Yes "B" ("A")
Yes "C" ("A")
Yes "D"
• Automatically reduced to approx. 3 000 r/min. by an intermittent fuel injection signal.
• If the operator decreases the engine speed below the over revolution system maximum
preset value, within 10 seconds, the over-revolution caution control will be canceled.
"REV-LIMIT" lamp lights continuously.
No buzzer sounds.
Engine General Information and Diagnosis:
"A"
"C" "B"
I9J011110004-02
"C": "TEMP" lamp
"D": "CHECK ENGINE" lamp
Caution Buzzer
No
Yes
Yes
Yes
1A-7
Z9J0111101003
Engine RPM Limited
Yes
Yes
Yes
No